1, forearm rotation and wrist flexion and extension must be coordinated. That is, before turning the arm, the wrist must be flexed and stretched, focusing on the thenar muscle. On the contrary, after the forearm is rotated, the wrist joint must be flexed and extended, with emphasis on the dorsal side of the fifth metacarpal bone and the fourth metacarpal bone. This will cause the surface to keep rolling back and forth. Its rolling frequency is about 120~ 160 times per minute.

2. The tumbling posture must be that the person is standing. Don't bend over and shake your body. Relax the shoulders, and the upper arm is 5~ 10cm away from the chest wall. The upper arm should not shake. Wrist should be relaxed, with the extension range of about 120, wrist flexion and extension of about 80, and wrist flexion and extension of about 40.

3. The rolling method is a word "rolling". Please don't drag the back of your hand, move, shake, press and hit the healing position of the epidermis with the back of your hand. Fingers also need ways to let them be natural, and they don't have to be clenched separately.

The kneading method was created by the late massage expert Dr. Ding Jifeng, so it is also called Shi Ding kneading method. Rolling is composed of wrist flexion and extension and forearm rotation. When manipulating, it feels like a ball rolling back and forth on the body surface, which is very comfortable.

What is the scrolling method:

Using the continuous compound movements of wrist flexion and extension and internal and external rotation, rolling back and forth by hand is called rolling method. When operating, the shoulders, arms and wrists should be relaxed, and the elbow joints should be slightly flexed. When rolling, it should be close to the skin of the operating part, and the force should be even and rhythmic, and it is not allowed to jump. The frequency is generally 120- 160 times per minute.

Evolution of rolling method;

1. Knee-hugging and waist-rolling method: the performer holds the patient's knee joint with one hand and shakes it clockwise and counterclockwise, while rolling with the other hand on the patient's lumbosacral region. During the operation, the subject took a prone position.

2. Knee-shaking and hip-rolling method: the patient takes a prone position, and the operator holds his ankle in one hand and shakes it clockwise and counterclockwise, while the other hand rolls on the hip.

3. Two-handed rolling method: also known as "dragon and phoenix are auspicious". When operating, both hands roll back and forth, left and right in the same or different directions at the operated part. It is often used in areas with large surgical field of vision such as back and abdomen.